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Wind tunnel tests on a common helicopter platform Expected activities (3/3) � Task 3: CFD Analysis (optional) � Numerical assessment of the drag reduction of the optimised design � Investigation of wind-tunnels effect (strut, walls) � Numerical/experimental correlations Green RotorCraft ITD - Giornata ACARE Italia – <strong>GRC</strong> Topics for CFP#12, 17th May 2012 Torino 14 14
Wind tunnel tests on a common helicopter platform Skills and capabilities required � Qualified and demonstrated skills in WT testing (appreciated previous experience in WT testing on helicopter configurations) � Wind Tunnel: � wind speeds at least 40 m/s � fuselage angle of attack from -20° to +20° (both mount systems) � fuselage angle of side-slip from -20° to +20° (both mount systems) � rotating rotor-hub using suitable driving system � Measurement capabilities � global loads through an internal or external balance, all six components � surface static pressures (~300 pressure taps in a full configuration) � surface unsteady pressures (~20 unsteady pressure transducers in a full configuration) If the applicant offers CFD work in task 3, the following skills are encouraged � mandatory � CFD code solving the RANS equations � Optional � CFD code solving the URANS equations � Moving body capabilities for rotating rotor head Green RotorCraft ITD - Giornata ACARE Italia – <strong>GRC</strong> Topics for CFP#12, 17th May 2012 Torino 15 15
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Page 5 and 6: © 2012 - CSJU/GRC-ITD Members Low
Page 7 and 8: Low weight, high energy efficient t
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Page 11 and 12: Scope � Objectives: o Support of
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Page 19 and 20: Design and Implementation of a Load
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Page 25 and 26: GRC-05-006: Development and Test of
Page 27 and 28: GRC5 Curved SBAS-guided IFR procedu
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Page 33 and 34: BACK-UP SLIDES Green RotorCraft ITD
Page 35 and 36: GRC: Technological objectives 1. In
Page 37 and 38: GRC-ITD Environmental Goals Green R

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